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Proceedings Paper

Stretchable photo sensor based on graphene/perylene composite utilizing electrohydrodynamic fabrication technique
Author(s): Shawkat Ali; Jinho Bae; Chong Hyun Lee
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Paper Abstract

We propose a stretchable photo sensor fabricated on uniform ridged polydimethylsiloxane PDMS substrate through electro-hydrodynamic (EHD) technique. An active layer, perylene/graphene composite thin film (67nm) is sandwiched between top and bottom ITO electrodes. The electrical conductivity of the perylene is enhanced by blending with graphene. The photo sensor changes the terminal resistance from 108MΩ to 87MΩ against light intensity of 0~400lux, respectively. To verify a stretchability, the proposed photo sensor under mechanical strain of 25% is normally worked, and it is stretchable up to 50% strain, maximally. A mechanical bendability test is carried out by folding the device for 1000 endurance cycles, while there is no change in the electrical behavior.

Paper Details

Date Published: 1 July 2015
PDF: 4 pages
Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 96550F (1 July 2015); doi: 10.1117/12.2184284
Show Author Affiliations
Shawkat Ali, Jeju National Univ. (Korea, Republic of)
Jinho Bae, Jeju National Univ. (Korea, Republic of)
Chong Hyun Lee, Jeju National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 9655:
Fifth Asia-Pacific Optical Sensors Conference
Byoungho Lee; Sang-Bae Lee; Yunjiang Rao, Editor(s)

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